US food giant General Mills has announced three key leadership positions involving top executives. Marc Belton was named to the newly created position of senior VP, Yoplait, Canada and New Business Development. In this new role, Belton will have broader operating responsibilities, providing corporate oversight to four business units, including the Yoplait-Colombo yogurt division, General Mills Canada, Small Planet Foods and 8th Continent, General Mills' joint venture with DuPont. He also will work closely with top management on new business initiatives. He will report to General Mills vice chairman Steve Demeritt.